Topic for developm. NeuroBiology paper?

My sister has to do a paper on Developmental neurobiology. She is a student at
Colby, and asked me to help her think of a topic. It has to be a recent topic (within
the last month or so). If anybody can think of an interesting topic for her paper, I'd
really appreciate if you could email me at CORLISS at A1.tch.harvard.edu
thanks!
Sean